S = 4 м
t = 10 c
N = 4 Вт
-----------------
f - ?
N = А/t → f × S / t
A = N × t → 4 × 10 = 40
f = A/S → 40/4 = 10 H
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Verified answer
Дано:
S = 4 м
t = 10 c
N = 4 Вт
-----------------
f - ?
Розв'язок:
N = А/t → f × S / t
A = N × t → 4 × 10 = 40
f = A/S → 40/4 = 10 H